Limnonectes megastomias
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~50% in a week ~80%
Limnonectes megastomias is a species of frogs with fangs that was discovered in Thailand in 2008. The frog eats birds and insects. The male frogs use their fangs to attack other males in combat. The species have also been known to eat other frogs.
Limnonectes megastomias has been recorded from these locations in eastern Thailand (McLeod, 2008). Phu Luang Wildlife Sanctuary, Loei Province (type locality) Sakaerat Environmental Research Station, Wang Nam Khiao District, Nakhon Ratchasima Province
Pang Sida National Park, Sa Kaeo Province Limnonectes megastomias is a robust, very large-headed fanged frog. Adult males range from 40 to 123.7 mm SVL and the females measure 53.5 – 86.3 mm SVL. The head is somewhat longer than wide, and males have larger heads (41-56% of SVL) than females (39-45% of SVL). Males also have thick, elongated odontoid processes, which act as “fangs.” These same processes are present in females but are reduced in size. Males have nuptial pads, consisting of tiny spines on the medial surface of Finger I and the dorsomedial surface of Finger II, above the fringe on the preaxial side. The snout is rounded when viewed from above, obtuse... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Khorat big-mouthed frog sighting in Khao Yai National Park on a given day, based on 27 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 3rd most-seen of the 13 amphibians we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
July and August
In those months about 40% of wildlife watchers report a Khorat big-mouthed frog in Khao Yai National Park on a given day, against under 5% in May and December, the lowest months. Those are among Khao Yai National Park's wettest months, with about 260 mm of rain a month against 15 mm in December.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Khorat big-mouthed frog sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Khao Yai National Park, in our data
Khao Yai National Park is the only park on Wallace's Line with enough records to rate Khorat big-mouthed frog sightings: about 20% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Khorat big-mouthed frog is recorded against all the amphibians logged in Khao Yai National Park (27 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
